drop table if exists t1;
## Creating new table ##
CREATE TABLE t1
(
id INT NOT NULL auto_increment,
PRIMARY KEY (id),
name varchar(30)
) ENGINE = INNODB; '#--------------------FN_DYNVARS_003_01-------------------------#'
## Setting variable's value to 0 i.e false ## SET @@autocommit = 0; '#--------------------FN_DYNVARS_003_02-------------------------#'
CONNECT test_con1,localhost,root,,;
connection test_con1;
## Checking value of variable after opening new connection ##
SELECT @@autocommit;
@@autocommit 1
## Setting value of variable to zero and inserting some rows ## SET @@autocommit = 0;
INSERT into t1(name) values('Record_1');
INSERT into t1(name) values('Record_2');
SELECT * from t1;
id name 1 Record_1 2 Record_2
## Creating another connection and verifying records in table ##
CONNECT test_con2,localhost,root,,;
connection test_con2;
SELECT * from t1;
id name '#--------------------FN_DYNVARS_003_03-------------------------#'
## Verifying behavior of variable by commiting rows in test_con1 ##
connection test_con1;
SELECT * from t1;
id name 1 Record_1 2 Record_2
COMMIT;
## Now verifying records in table from connection # 02 ##
connection test_con2;
SELECT * from t1;
id name 1 Record_1 2 Record_2 '#--------------------FN_DYNVARS_003_04-------------------------#'
connection test_con1;
SELECT * from t1;
id name 1 Record_1 2 Record_2
## Updating value of first row ##
UPDATE t1 set name = 'Record_12' where name = 'Record_1';
SELECT * from t1;
id name 1 Record_12 2 Record_2
## Connecting to connecting # 02and verifying effect of update query ##
connection test_con2;
SELECT * from t1;
id name 1 Record_1 2 Record_2
## Now connecting with connection # 01and using ROLLBACK after it ##
connection test_con1;
ROLLBACK;
SELECT * from t1;
id name 1 Record_1 2 Record_2 '#--------------------FN_DYNVARS_003_05-------------------------#'
connection test_con1;
INSERT into t1(name) values('Record_3');
## Now verifying records in table from connection # 02and changing value ##
## of autocommit to true ##
connection test_con2;
SELECT * from t1;
id name 1 Record_1 2 Record_2 SET @@autocommit = 1;
INSERT into t1(name) values('Record_4');
INSERT into t1(name) values('Record_5');
SELECT * from t1;
id name 1 Record_1 2 Record_2 4 Record_4 5 Record_5
## Connecting with connection # 01and inserting few records ##
connection test_con1;
SELECT * from t1;
id name 1 Record_1 2 Record_2 3 Record_3
INSERT into t1(name) values('Record_6');
SELECT * from t1;
id name 1 Record_1 2 Record_2 3 Record_3 6 Record_6
## Now verifying the effect of these new records in second connection ##
connection test_con2;
SELECT * from t1;
id name 1 Record_1 2 Record_2 4 Record_4 5 Record_5
## Commit changes
connection test_con1;
COMMIT;
## Dropping table t1 ##
DROP table t1;
disconnect test_con1;
disconnect test_con2;
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